<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录</title>
    <style>
      .c1{
        color: red;
      }
      .c2{
          height:50px;
      }
    </style>
</head>
<body>


<h1 class="c1">用户登录</h1>
<form action="/login" method="post">
    <div class="c2">
        用户名: <input type="text" name="username">
    </div>
    <div class="c2">
        密码: <input type="text" name="password">
    </div>
  <input type="submit" value="提交">


</form>



</body>
</html>